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luiten faire jsteat fitte.

CHARLES R. A ELLIS, OE BROOKLYN, NEW YORK. Letters .Patent No. 73,084, dated January 7, 1868.

BOILERS FOR. HEATINGAPPARATUS.

TO ALL-WHOM I'l MAY CNCERN:

Be it known that I, CHARLES R. ELLIS, of Brooklyn, in the county of Kings, and State of New York, have invented, made, and applied to use a certain new and useful Improvement in Boilers for Heating- Apparatus, 85e.; and I dohereby declare thel following to b'e a full, clear, and exact description of the said invention, reference being had to the annexed drawing, making part of this specification, wherein Figure 1 is a vertical section of a. boiler tted with my improvement.

Figure 2 is a. plan of the endy Of one ofthe pipes in larger size; and

Figure 3 is a vertical section, showing the ends of some of the pipes in larger size than iig. 1'.

The same lettersdeuotc corresponding parts. v I

The object of this invention is to furnish a cheap and tight joint for the pipes of a tubular boiler employed in heating-apperatus, Src. Y l

The said invention consists in a water-way thimhle formed upon the side of the pipe, near the end thereof,

.setting against a corresponding water-way thimblein-thc adjacent pipe, the series of pipes andjoints being held together by tic-bolts passing through these water-Way thimbles at right angles to the pipes.

In hot-water Warming-apparatus it is desirable to have a large extent of surface exposed to the action of the re, and also to have-thc same as compact as possible; and cheapness of construction and facility for repairs are also essential features both in the boiler and the radiating coil. These peints are all' secured by my present invention. v

In the drawing, a repiesents the fire-chamber, the bridge-wall, e the front, d the'back, and c the top of the boiler-space. These parts are shown of brickivork. They muy be made in any desired manner, and of proper material. The boiler itself is composed of a coil of pipes,f, and I remark that my improved connections for said pipes may be employed in the radiating-coil o'f the heating-apparatus as well as in the furnace-coil. g `is the cross-pipe, through which the return circulation enters from the radiating-pipes into the boiler-pipes, and h is a. similar pipe at the upper end of the boiler-coil, lthrough which the heated water ascends to the upper part of said coil, as usual. The tubes f are formed with Waterway th'imbles'z' 'z' on opposite sides, near thel ends of the pipes, and thctlat surfaces of these thimbles come together, as seen at 1 1, or thesurfaces may have circular beads and ribs setting into each/other, as seen at 2 2. A. tic-bolt, Z, passes through the thimblcs at cach endofthe vertical range of tubes and caps 7c, close the en'd-thimbles, and receive the heads and nuts of thebolts Z. Putty or cement is to'be introduced between the surfaces of the thiinbles that-come together, and the screwing up ofthe boltsl renders thejoints perfectly tight, and squeezes out surplus cement. rllhe pipes Ag and 7L are to have each a range of the thimbles on one side, to unite with the thimblcs of the respective ranges of pipes f, and the head or nut of the bolts Z may come against the outside of the said pipe rj or i, the bolt itself passing through a hole on the opposite side to the Water-wey thimble. v

This improved connection for the circulating-pipes gives great facility initting the coils of pipes together, and but little workmanship is required. v

I do not claim a series of steam-radiating cases connected together by tic-bolts.

What I claim, and desire to secure by Letters Patent, is-

A series of pipes for a hot-water heating-apparatus, formedwith the water-way thimhlcs near the ends of the tubes, in combination with the pipe (g or h) having a range of thimbles on one' side, the whole being connected together by tie-rods, as set forth.

Dated April 30, A. D. 1867.

CIIS.v R. ELLIS.

Witnesses:

Cms. H. SMITH, GEO. D. WALKER,v 

